Service Principal Authentication Attempt from New Country

id: 1baaaf00-655f-4de9-8ff8-312e902cda71
name: Service Principal Authentication Attempt from New Country
description: |
  'Detects when there is a Service Principal login attempt from a country that has not seen a successful login in the previous 14 days.
    Threat actors may attempt to authenticate with credentials from compromised accounts - monitoring attempts from anomalous locations may help identify these attempts.
    Authentication attempts should be investigated to ensure the activity was legitimate and if there is other similar activity.
    Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
severity: Medium
requiredDataConnectors:
  - connectorId: AzureActiveDirectory
    dataTypes:
      - AADServicePrincipalSignInLogs
queryFrequency: 1d
queryPeriod: 14d
triggerOperator: gt
triggerThreshold: 0
tactics:
  - InitialAccess
relevantTechniques:
  - T1078.004
tags:
  - AADSecOpsGuide
query: |
  let known_locations = (
    AADServicePrincipalSignInLogs
    | where TimeGenerated between(ago(14d)..ago(1d))
    | where ResultType == 0
    | summarize by Location);
    AADServicePrincipalSignInLogs
    | where TimeGenerated > ago(1d)
    | where ResultType != 50126
    | where Location !in (known_locations)
    | extend City = tostring(parse_json(LocationDetails).city)
    | extend State = tostring(parse_json(LocationDetails).state)
    | extend Place = strcat(City, " - ", State)
    | extend Result = strcat(tostring(ResultType), " - ", ResultDescription)
    | summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated), make_set(Result), make_set(IPAddress), make_set(Place) by ServicePrincipalName, Location
entityMappings:
  - entityType: Account
    fieldMappings:
      - identifier: Name
        columnName: ServicePrincipalName
version: 1.0.1
kind: Scheduled
metadata:
    source:
        kind: Community
    author:
        name: Pete Bryan
    support:
        tier: Community
    categories:
        domains: [ "Security - Others", "Identity" ]